Correct shell scripts not running properly

concepts.

.gitignore

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 /bin/
-/releases/

README.md

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 # Sushi
-## Introduction
-Sushi is a Suicide Chess program I wrote back in 2006 during my compsci studies.  My [dissertation](https://git.djib.fr/djib/Sushi/raw/branch/master/docs/2006%20Dissertation%20-%20Programmimg%20a%20Suicide%20Chess%20playing%20program.pdf) is available in the `docs` folder.  It will probably help anyone who wishes to contribute or fork my program.
+Sushi is a Suicide Chess program I wrote back in 2006 during my compsci studies.  My [dissertation](https://djib.fr/djib/Sushi/raw/branch/master/docs/2006%20Dissertation%20-%20Programmimg%20a%20Suicide%20Chess%20playing%20program.pdf) is available in the `docs` folder.  It will probably help anyone who wishes to contribute or fork my program.
 
 It can either be used from the command line or using [XBoard](https://en.wikipedia.org/wiki/XBoard) as a graphical interface.
 
 I share the code freely under a [GPLv3 licence](https://en.wikipedia.org/wiki/GNU_General_Public_License#Version_3).
-
-## Screenshots
-### In a terminal
-![Sushi in an terminal](https://git.djib.fr/djib/Sushi/raw/branch/master/docs/screenshot-terminal.png)
-### In XBoard
-![Sushi in XBoard](https://git.djib.fr/djib/Sushi/raw/branch/master/docs/screenshot-xboard.png)